Question

What do you call the unit of heat?

a. Degree
b.Heat
c. Temperature
d. calorie
2. The Second Law of Thermodynamics states that: _______

a. Heat will always flow spontaneously from hotter substances to colder ones.
b. Heat will not flow from hotter substances to colder ones.
c. Heat will flow spontaneously from colder substances to hotter ones.
d. Heat will always flow spontaneously.
3. It is defined as the measure of hotness and coldness of a body________

a. Degree
b. Heat
c. Temperature
d. calorie
4. A cooking pot is coated black because -

a. black substances absorb more heat
b. black substances reflect more heat
c. black surfaces are easier to clean
d. the material of the pot would not be dama
5. What do you call the quantity of energy absorbed or given off by an object?

a. Degree
b. Heat
c. Temperature
d. calorie
6. What is the symbol of Fahrenheit?

a. K
b. C
c. F
d. R
7. Specific heat is -

a. The specific temperature at which the substance is in solid state.
b. The energy needed to increase the temperature of 1 gram of a substance by 1 degree Celsius.
c. The amount of heat conducted in 1 minute.
d. The heat needed to increase the temperature of 1 gallon of water by 1 degree Fahrenheit.
8. As a solid undergoes a phase change to a liquid state, it

a. Releases heat while remaining at a constant temperature.
b. Absorbs heat while remaining at a constant temperature.
c. Releases heat as the temperature decreases.
d. Absorbs heat as the temperature increases.
9. Which one among the following waves are called waves of heat energy?

a. Radio waves
b. Infrared waves
c.Ultraviolet waves
d.Microwaves
10. The unit of temperature ___________

a. Degree
b. Heat
c. Temperature
d. Calorie
11. What would happen to a hole in a metal sheet when the sheet is heated?

a. It decreases in size
b. It increases in size
c. No change is seen
d. First increases and then decreases
12. The instrument use to measure temperature _________.

a. Degree
b. Calorie
c. Temperature
d. Thermometer
13. What are the units of thermometer by different scales?

a. Fahrenheit
b. Celsius
c. Kelvin
d. All of the above
14. When a solid, liquid, or a gas changes from one physical state to another, the change is called _________.


a. melting
b. enthalpy
c. a phase change
d. sublimation
15. Which of the following is used for measurement of high temperatures?

a. vapour thermometer
b. energy meter
c. resistance thermometer
d. pyrometer​

Answer 1

Answer:

I don't know sorry for not giving answer

Answer 2

Answer:

mark me as brainliest

1) d) calorie

2) d. Heat will always flow spontaneously.

3) c. Temperature

4) a. black substances absorb more heat and c. black surfaces are easier to clean

5) b. Heat

6) c. F

7) a. The specific temperature at which the substance is in solid state

8) d. Absorbs heat as the temperature increases.

9) b. Infrared waves

10) a. Degree

11) a. It decreases in size

12) d. Thermometer

13) d. All of the above

14) a. melting

15) d. pyrometer​